Devices, systems, and methods for the storage of objects are provided, such as an adjustable storage device for protecting fragile decorative items, which can include a plurality of adjustable rectangular storage compartments arranged in a rectangular array, a first plurality of elongate structures spaced at intervals and oriented parallel to one another, a second plurality of elongate structures spaced at intervals and oriented parallel to one another, wherein the first plurality of elongate structures is oriented perpendicularly to the second plurality of elongate structures to form an opening for each of the plurality of storage compartments, and a flexible liner disposed across the plurality of storage compartments, wherein the flexible liner extends through each single opening to form sides and a bottom of each storage compartment.

A tray support rack has a top member, a bottom member, a first frame that extends from the top member to the bottom member on a first side of the tray support rack, and a second frame that extends from the top member to the bottom member on a second side of the tray support rack. The first frame includes a first set of parallel rails, with each parallel rail of the set being spaced apart from another parallel rail to define a first guide space therebetween, and a first bottom support rail spaced apart from the first set of parallel rails. The second frame includes a second set of parallel rails, with each parallel rail of the set being spaced apart from another parallel rail to define a second guide space therebetween, and a second bottom support rail spaced apart from the second set of parallel rails.

A shelf for a trolley comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks for mounting the shelf in the trolley. One or more of the hooks are formed from a metal strip bent about an axis extending perpendicular to the central plane of the plate.

A trolley comprising a plurality of rectangular and elongated shelves comprising a plate providing a surface for carrying goods, such as potted plants and flowers, and hooks, and a plurality of posts provided with a series of openings, such as slots, receiving the hooks. The hooks extend in lateral direction and a series of openings is provided in precisely one side of the posts or in precisely two and opposite sides of the posts.

A container system including a storage base that includes a frame and a partition wall dividing the frame into first and second compartments, where each of the first and second compartments includes a cavity formed therein and the partition wall is formed to include a handle, and the handle is configured to removably couple a first and second storage base to form a storage unit.

A traveling robot comprises: a lower housing; a frame assembly positioned inside the lower housing; a traveling unit position at the lower part of the frame assembly; a tray frame coupled to the upper part of the lower housing so as to extend upwardly; a load cell coupled to the tray frame; a moving bracket coupled to the upper part of the load cell; a tray holder coupled to the moving bracket and protruding through a fastening hole of the tray frame; and a tray module seated on the tray holder. By having the load cell, the traveling robot is capable of detecting whether an object placed on a tray is present or falling, toppling over, etc. and thus is capable of traveling in a stable manner.

A packaging supporting frame for a spring mattress includes two transverse frames, two longitudinal frames, and rollers. Each of one or more bottom supporting frames is configured to be rotated to form an angle between 0and 90with a corresponding one of the two transverse frames. When the one or more bottom supporting frames are rotated perpendicular to the two transverse frames, two ends of each of the one or more bottom supporting frames are respectively connected to the two longitudinal frames. A length of each of the two transverse frames in a transverse direction is greater than or equal to twice a length of each of the two longitudinal frames in a longitudinal direction, and the rollers are arranged at the bottoms of the two transverse frames or bottoms of the two longitudinal frames.

A modular cart assembly has a base with two support columns extending upward from the base, a plurality of slots and a plurality of mounting openings positioned along the two support columns, and at least one removable part module. The removable part module has a plurality of hooks configured to removably mate with the plurality of slots, and a plurality of mounting members configured to be removably received in the plurality of mounting holes. The removable part module is configured to accommodate a plurality of items to be cleaned.